Pipe fitting apparatus



May 19, 1931. c. FENN ET AL 1,805,909

PIPE FITTING APPARATUS Filed April 29, 1929 4 Sheets-Sheet l A itorney Inveniors' May 19, 1931. c FENN ET AL 1,805,909

PIPE FITTING APPARATUS Filed April 29, 1929 4 Sheets-Sheer. 2

R R 5 3 k m 1 g y C 5/ \1 1/ a: A. N i s I x r l I I z a \g Inventors 1701?)? 671 1222 .fi'i'uari' law/3' Allorncy May 19, 1931. L. c. FENN ET AL 1,805,909

PIPE FITTING APPARATUS Filed April 29, 1929 4 Sheets-Sheer. 3

" [nveniors I01? 6; 17 1221, 67 a an? flavzls A tlorney Filed April 29, 1929 4 Sheets-Sheet 4 Inventors for? (5.7 91222 Stuart Java's Attorney Patented May 19, 1931 UNIT ED STATES LOREN C. F-ENN AND STUART DAVIS, OF CHINOOK, WASHINGTON PIPE FITTING- APPARATUS Application filed April 29,

The present invention relates to a pipe fitting apparatus and has for its prime object to provide a threaded cylinder with means for rotating the same and adapted to receive tools and the like for operating upon pipes.

Another very important object of the invention resides in the provision of an apparatus of this nature wherein the parts are easily assembled and disassembled for replacement purposes and the like.

A still further Very important object of the invention resides in the provision of a device of this nature which is exceedingly simple in its construction, inexpensive to manufacture, strong and durable, easy to manipulate, compact and convenient in its arrangement of parts, thoroughly efficient and reliable in use and operation, and otherwise well adapted to the purpose for which it is designed.

With the above and numerous other objects in view as will appear as the description proceeds, the invention resides in certain novel features of construction, and in the combination and arrangement of parts as will be hereinafter more fully described and claimed.

In the drawings:

Figure 1 is a top plan View of the apparatus embodying the features of our invention,

-. lar and threaded guide therein,

Figure 7 is a similar view with a chuck therein,

Figure 8 is a similar view showing a tool for cutting threads inside a pipe,

Figure 9 is a sectional View through the 1929. Serial No. 359,074.

cylinder taken substantially on the line 9-9 of Figure 2, and

Figure 10'is a detail View of the centering block.

Referring to the drawings in detail it will be seen that numerals 5 denote elongated plates supported by standards 6 and connected together at their ends by cross bars 7 so as to be disposed in spaced coextensive parallelism. A clamp structure comprises a casting A with a ring like center portion 8 having diametrically oppositely disposed arm extension 9 resting on intermediate portions of the plate 5. A plurality of screws 10 are threaded through the ring like portion 8 in the upper part thereof in a radial manner for centering a pipe or the like resting on a centering block 11 having depending pegs 12 to engage in depressions provided in the lower part of the ring like portion 8.

Thus the pipe rests on the block 11 and is held in place by means of set screws 10. Obviously different sized blocks 11 will be piovided for diiferent sized pipes and the Front guide 14 is provided with an opening 15 and mounted on the front ends of the plate 5. A pair of bars 16 are detachably connected by means of bolts 18 with the upper and lower parts of the clamp A and the guide 14 so as to be disposed one directly above the other in spaced coextensive parllelism and the opposed surfaces of these bars 16 are threaded as is indicated at 17.

A cylinder 19 has an externally threaded collar 20 formed at the forward end thereof and threadedly engaged with the threads 17 of the bars 16. This cylinder has an intermediate portion 19 rotatable in a cradle 20 with diametrically opposed outwardly extending supporting arms 21 resting on blocks 22 slidable on the plate 5 which are provided with longitudinally extending ribs 23 to extend into grooves 24 on the under side of the block 22.

A retaining member 26 has an arcuate intermediate portion circumjacent the upper portion of the cylinder and having arms 27 fastened as at 28 to the arms 21. A gear 29 is fixed about the cylinder 19 and meshes with a gear 30 on a shaft 31 on which shaft is also a beveled gear 32 meshing with a beveled pinion 34: on a sha t journaled in a bearing 36 rising from one arm 21.

In the present instance a hand crank 37 Es provided on the hand shaft for turning the same although any other suitable means may be used. L-shaped brackets 38 are secured to the blocks 22 to extend along downwardly of the outer side edges of the plate 5 and then under the plate 5.

From the above description it will be seen that when the shaft 35 is turned the cylinder 15) rotates through the gearing and as this cylinder rotates it progresses to the left of Figures 1 and 2 and therefore if a pipe cutting tool such as is disclosed at 40 is anchored through an opening in the front end of the cylinder by means of the set screw 41 said tool will cut a thread about the pipe in the clamp structure A in accordance with the threads 17. Other tools such as an internal thread cutter -12, see Figure 8, or, a chuck 43, see Figure 6, or a reamer 44, see Figure 7, may be mounted in the cylinder.

The chuck 43 would be mounted in place by radial screws 45. Particular attention is directed to the ease with which the bars 16 and the cylinder 19 may be changed for similar parts depending upon the threads to be cut and other incidental features as will be quite apparent.

It is thought that the construction, operation, utility and advantages of this invention will now be quite apparent to those skilled in this art without a more detailed description thereof.

The present embodiment of the invention has been disclosed in considerable detail merely for the purposes of exemplification since in actual practice it attains the features of advantage enumerated as desirable in the statement of the invention and the above description. It will be apparent that changes in the details of construction, and in the combination and arrangement of parts may be resorted to without departing from the spirit or scope of the invention as hereinafter claimed or sacrificing any of its advantages.

Having thus described our invention, what we claim as new is:

1. An apparatus of the class described comprising a clamp and a guide, a pair of bars connected to the clamp and to the guide and having opposed surfaces threaded, a cylinder having a threaded portion engaged in the bars, a cradle structure in which the cylinder is rotatably mounted, a slidable sup port for said cradle structure, means for supporting a tool in the cylinder for engaging a pipe held by the clamp, and means for rotating the cylinder.

2. An apparatus of the class described comprising a clamp and a guide, a pair of bars connected to the clamp and to the guide and having opposed surfaces threaded, a cylinder having a threaded portion engaged in the bars, a cradle structure in which the. cylinder is rotatably mounted, a slidable support for said cradle structure, means for supporting a tool in the cylinder for engaging a pipe held by the clamp, a gear fixed about the cylinder and gearing connected therewith for causing the rotation of the cylinder.

3. An apparatus of the class described comprising a clamp and a guide, a pair of bars connected to the clamp and to the guide and having opposed surfaces threaded, a cylinder having a threaded portion engaged in the bars, a cradle structure in which the cylinder is rotatably mounted, a slidable support for said cradle structure, means for supporting a tool in the cylinder for engaging a pipe held by the clamp, a gear fixed about the cylinder and gearing connected therewith for causing the rotation of the cylinder, said means for slidably supporting the cradle comprising a pair of elongated plates having longitudinally extending ribs, blocks slidable on the plates and havin grooves to receive the ribs, and arms extending from the cradle structure to rest on said blocks.

In testimony whereof we aflix our signatures.

LOREN O. FENN. STUART DAVIS. 

